<template>
  <el-container class="home-container">
    <!--头部区域-->
    <el-header >
      <div>
        <img src="~assets/logo.png" alt="" width="100px" height="50px">
        <span>电商后台管理系统</span>
      </div>
      <el-button tyoe="info" @click="logout">退出</el-button>
    </el-header>
    <!--页面主题区域-->
    <el-container>
      <!--侧边栏-->
      <!--<el-aside width="200px">-->
        <!--侧边栏菜单去-->
      <el-aside :width="isCollapse ? '64px' : '200px'">
        <div class="toggle-button" @click="toggleClick">|||</div>
        <el-menu
          background-color="#333744"
          text-color="#fff"
          active-text-color="#409EFF"
          :unique-opened="true"
          :collapse="isCollapse"
          :collapse-transition="false"
          :default-active="activePath"
          :router="true">
          <el-submenu :index="item.id+''" v-for="item in menulist" :key="item.id">
            <template slot="title">
              <i :class="iconsObj[item.id]"></i>
              <span>{{item.authName}}</span>
            </template>
            <!--二级菜单-->
            <el-menu-item :index="'/' + subItem.path"
                          v-for="subItem in item.children"
                          :key="subItem.id"
                          @click="saveNavState('/' + subItem.path)">
              <template slot="title">
              <i class="el-icon-menu"></i>
              <span>{{subItem.authName}}</span>
               </template>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <!--右侧内容主题-->
      <el-main>
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
import request from 'api/request.js'

export default {
  name: 'Home',
  data () {
    return {
      menulist: [],
      iconsObj: {
        '125': 'el-icon-user-solid',
        '103': 'el-icon-setting',
        '101': 'el-icon-shopping-bag-2',
        '102': 'el-icon-s-order',
        '145': 'el-icon-s-marketing',
      },
      isCollapse: false,
      activePath: ''
    }
  },
  created () {
    this.getMenuList()
    this.activePath = window.sessionStorage.getItem('activePath')
  },
  methods: {
    logout () {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    async getMenuList () {
      const {data: res} =await request('menus')
      if(res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.menulist = res.data
    },
    // 点击按钮控制菜单折叠与展开
    toggleClick () {
      this.isCollapse = !this.isCollapse
    },
    // 保存连接的激活状态
    saveNavState (activePath) {
      window.sessionStorage.setItem('activePath',activePath)
      this.activePath = activePath
    }
  }
}
</script>


<style scoped lang="less" lang="less">

  .home-container {
    height: 100%;
  }
  .el-header {
    background-color: #373d41;
    display: flex;
    justify-content: space-between;
    padding-left: 0;
    align-items: center;
    color: #fff;
    font-size: 20px;
    > div{
      display: flex;
      align-items: center;
      span {
        margin-left: 15px;
      }
    }
  }
  .el-aside {
    background-color: #333744;
    .el-menu {
      border-right: 0px;
    }
  }
  .el-main {
    background-color: #eaedf1;
  }
  .toggle-button {
    background-color: #4A5064;
    font-size: 10px;
    line-height: 24px;
    color: #fff;
    text-align: center;
    letter-spacing: 0.2em;
    cursor: pointer;
  }
</style>

